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AP Chemistry: Basic Knowledge

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ElementsSymbol+Oxidation-Oxidation
aluminumAl3+
bariumBa2+
berylliumBe2+
boronB3+
bromineBr-1
cadmiumCd
calciumCa2+
carbonC4+-4
cesiumCs1+
chlorineCl-1
chromiumCr3+
cobaltCo2+, 3+
copperCu1+, 2+
fluorineF-1
goldAu1+
heliumHe
hydrogenH1+
iodineI-1
ironFe2+, 3+
leadPb2+, 4+
lithiumLi1+
magnesiumMg2+
manganeseMn
mercuryHg
neonNe
nickelNi
nitrogenN-3
oxygenO-2
phosphorusP-3
platiunmPt
potassiumK1+
siliconSi
silverAg1+
sodiumNa1+
strontiumSr2+
sulfurS-2
tinSn2+
zincZn2+
POLYATOMIC IONS
phosphatePO43-
ammoniumNH41+
acetateCH3COO1-
hydroxideOH1-
nitrateNO31-
carbonateCO32-
sulfateSO42-
chlorateClO31-
chromateCrO42-
dichromateCr2O72-
peroxideO22-
cyanideCN1-
permanganateMnO41-
oxalateC2O42-
hydrogen phosphateHPO42-
dihydrogen phosphateH2PO41-
thiocyanateSCN1-
thiosulfateS2O32-
hydrogen carbonateHCO31-
mercury (I)Hg22+
ACIDS
oxy-acids
aceticCH3COOH
carbonicH2CO3
nitricHNO3
nitrousHNO2
phosphoricH3PO4
sulfuricH2SO4
sulfurousH2SO3
non-oxyacids
hydrochloricHCl
hydrofluoricHF
hydrobromicHBr
hydroiodicHI
hydrosulfuricH2S
hydrocyanicHCN


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